Face mask with an adjustable headband



FIG. 1 is a perspective view of the face mask with an adjustable headband showing my new design.

FIG. 2 is a perspective view thereof.

FIG. 3 is a back side view thereof.

FIG. 4 is a left side view thereof.

FIG. 5 is a right side view thereof.

FIG. 6 is a bottom view thereof.

FIG. 7 is a bottom view thereof.

FIG. 8 is a back view thereof; and,

FIG. 9 is a front view thereof.

The broken lines shown within the face mask depict stitching and form no part of the claimed design.

The broken lines shown in the mannequin form environment structure and form no part of the claimed design.

The broken lines shown in the glasses form environment structure and form no part of the claimed design. 

CLAIM The ornamental design for a face mask with an adjustable headband, as shown and described. 